package com.itheima.controller;


import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.OSSObject;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.common.R;

import com.itheima.pojo.Dish;
import com.itheima.service.DishService;
import com.itheima.utils.OSSProperties;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.apache.tomcat.util.http.fileupload.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.*;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;

@RestController
@Slf4j
@RequestMapping("/common")
public class CommonController {

    @Autowired
    OSSProperties ossProperties;
@Autowired
private DishService dishService;
    //图片上传
    //@Value("${reggie.path}")
    //private String basePath;
//    @PostMapping("/upload")
//    public R<String> upload(MultipartFile file) throws IOException {
//        String uuid = UUID.randomUUID().toString();
//        //InputStream inputStream = file.getInputStream();
//        String filename = file.getOriginalFilename();
//        filename = uuid + filename.substring(filename.lastIndexOf("."));
//        File dir = new File(basePath);
//        if(!dir.exists()){
//            dir.mkdirs();
//        }
//        file.transferTo(new File(basePath,filename));
//        return R.success(filename);
//    }
//
//    //图片下载
//    @GetMapping("/download")
//    public void download(HttpServletResponse resp, String name) throws IOException {
//        resp.setContentType("image/jpeg");
//        IOUtils.copy(new FileInputStream(new File(basePath,name)), resp.getOutputStream());
//    }


    //图片上传
    @PostMapping("/upload")
    public R<String> upload(MultipartFile file) throws Exception {
        //随机生成文件名称
        String imgName = UUID.randomUUID().toString();
        //获取上文文件的后缀
        String originalFilename = file.getOriginalFilename();
        String suf = originalFilename.substring(originalFilename.lastIndexOf("."));
        imgName = imgName + suf;


        String objectName = imgName;
        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(ossProperties.getEndpoint(), ossProperties.getAccessKeyId(), ossProperties.getAccessKeySecret());

        try {
            ossClient.putObject(ossProperties.getBucketName(), objectName, file.getInputStream());
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
//        } finally {
//            if (ossClient != null) {
//                ossClient.shutdown();
//            }
        }

        return R.success(objectName);
    }

    //图片下载
    @GetMapping("/download")
    public void download(String name, HttpServletResponse response) throws Exception {

        // 创建OSSClient实例。
        OSS ossClient = new OSSClientBuilder().build(ossProperties.getEndpoint(), ossProperties.getAccessKeyId(), ossProperties.getAccessKeySecret());

        try {
            // 调用ossClient.getObject返回一个OSSObject实例，该实例包含文件内容及文件元信息。
            OSSObject ossObject = ossClient.getObject(ossProperties.getBucketName(), name);
            // 调用ossObject.getObjectContent获取文件输入流，可读取此输入流获取其内容。
            InputStream content = ossObject.getObjectContent();

            IOUtils.copy(content, response.getOutputStream());

        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }

    }
}
